Service difficulty report · Bypass Valve · Airbus A319131

Difficulty date
April 24, 2023
Submitted
April 24, 2023
Operation
Air carrier
Aircraft
N825UA
Make and model
Airbus A319131
Aircraft serial
980
Aircraft time
75,148 hours, 32,267 cycles
Part
Bypass Valve
Part number
1312A000001
Part serial
1312A00L1000171
Condition
Failed
Location
Pack 2
Part time
767,535 hours, 728,774 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AIR PACK 2 REG FAULT...FLIGHT DECK TEMP UNCONTROLLABLE...AT 84 DEGREES AND CLIMBING. POST FLIGHT REPORT INFO REMOVED RIGHT PACK PANEL 192FB FOR TROUBLESHOOTING ACCESS. REPLACED PACK 2 TURBINE BYPASS VALVE (30HH) REF AMM 21-63-00-720-001-A. VERIFIED ALL ZONE TEMPS DRIVE HOT AND COLD :1 21-61-53/401. OPS AND LEAK CHECKS GOOD. PERFORMED OPERATIONAL AS REQUIRED. RE-INSTALLED PANEL 192KB REF AMM. FUNCTIONAL TEST OF THE COCKPIT AND CABIN TEMP CONTROL REF AMM.

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